According to these results, OGM, MOV, and FLV files also do not need to be re-adjusted.

The only reason I can see why this was added is one of two things: 1) The Windows version of MPlayer/MEncoder starts their audio streams at 1 for these files types.2) The Windows version of MPlayer/MEncoder @ r704 was incorrectly setting the first audio stream at 1 for these file types.

However, before I file a bug on this, I need someone on Windows, seeing as how that is the originating OS, to confirm that everything I'm seeing is consistant with what mplayer is showing on Windows as well.